Fig. 1: Design idea and synthesis strategy for Cu@mMOR.
From: Molecular fence Cu-based catalyst for CO2 hydrogenation to CO with high activity and durability

a Model illustration of the inverse microemulsion step. b Model illustration of the inverse microemulsion after adding TEOS and NH3·H2O. c Model illustration of Cu@SiO2. d Model illustration of Cu@SiO2 with Na+-rich layer. e Model illustration of Cu@mMOR. f Atomic-scale illustration of Cu@mMOR.